512 c software engineer jobs at 144 companies in Fontana, CA

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
3mo
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Software Engineer, C++
Bellevue or Costa Mesa
$166k-$220k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
3+ YOE3+ years in high-performance C++ software; CS/SE/Math/Physics foundation; capable of working in complex architectures; eligible for Top Secret clearance.
C++, Real-time systems, Performance optimization, Memory management
3w
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C++ Software Engineer
San Francisco or Los Angeles
$120k-$180k/yr OnsiteFull Time
Vast.ai
Vast.ai: Decentralized marketplace for GPU cloud computing resources.
Strong systems programming (ideally C++), deep Linux and virtualization knowledge, experience with containerization, multi-tenant and GPU security, and ability to benchmark and harden performance-critical infrastructure.
C, C++, Python, Linux
1d
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Software Engineer (C#/SQL)
United States or Ohio or Indiana or San Francisco or Los Angeles or New York City
$70k-$121k/yr RemoteFull Time
Allstate
AllstateNYSE: ALL: Provides insurance products for vehicles, homes, and businesses.
1+ YOE1-2 years software development experience with C#/.NET and SQL, familiarity with Git and Agile, strong debugging and communication skills.
C#, Microsoft .NET, Microsoft SQL Server, SQL, Git, Microsoft Visual Studio, Entity Framework, React, Angular, Vue.js, JavaScript, HTML5, CSS3, JSON, API Gateway
1mo
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JUNIOR SOFTWARE DEVELOPER (C++)
Norco, California, United States
$75k-$110k/yr OnsiteFull Time
VSolvit
VSolvit: Providing technology services and data solutions for government agencies.
0+ YOE0–4 years software development experience; proficiency in C++ for desktop applications; familiarity with OOP, multithreading, Git, CMake, and Python; U.S. Citizenship and active Secret DoD clearance required; CompTIA Security+ required.
C++, Git, CMake, Python, Jira, Confluence, SAFe, Agile
2mo
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Software Engineer, Spectacles C++, Level 4
Los Angeles or Palo Alto or Bellevue or Santa Monica
$133k-$235k/yr HybridFull Time
Snap
SnapNYSE: SNAP: Provides visual messaging software and augmented reality wearable devices.
2+ YOEBachelor’s in CS; 2+ years software experience; C++ experience; strong coding, testing, and collaboration skills.
C++, Kotlin, Java, Unit Testing, OS Knowledge, 3D Graphics
1mo
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Software Engineer (C++ and TS Clearance)
Woodland Hills or Los Angeles
$92k-$138k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
0+ YOEBachelor's in STEM +2 years (or Master's with 0 years), active Top Secret clearance enrolled in Continuous Evaluation, C/C++ experience, CI/CD and Git experience, onsite full-time, ability to meet security screening.
C, C++, CI/CD, Git, Docker, Kubernetes, Linux, CUDA, MLOps, DevSecOps, Agile, Scrum
2mo
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Software Engineer, Spectacles C++, Level 4
Los Angeles or Palo Alto or Bellevue or Santa Monica
$157k-$235k/yr HybridFull Time
Snap
SnapNYSE: SNAP: Develops social media applications and augmented reality technology.
Bachelor's degree in Computer Science or related field; 2+ years software development; experience in C++, Kotlin or Java; OS and 3D graphics experience preferred.
C++, Kotlin, Java, OS, 3D graphics, SDKs/APIs
3d
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Senior Software Engineer
Brea, California, United States
$130k-$147k/yr HybridFull Time
RAVE Aerospace
RAVE Aerospace: Developing in-flight entertainment and connectivity systems for airlines.
6+ YOEBachelor's in Engineering/CS or equivalent, 6+ years software development, experience with C/C++ and modern stacks (Qt/QML, Node.js, Golang, React, Typescript, Python), and systems-level debugging.
C, C++, Linux, UNIX, Microsoft .NET, C#, JavaScript, SQL, Qt/QML, Node.js, Golang, React, Typescript, Python, PostgreSQL, Docker, MQTT, Microservices, npm, Bower, Webpack
2mo
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Senior Software Engineer (.NET/C#)
Huntington Beach, California, United States
$150k-$170k/yr OnsiteFull Time
Applied Business Software
Applied Business Software: Provides loan origination and servicing software for private lenders.
5+ YOE5+ years in .NET/C#, backend architecture, distributed systems, SQL Server, CI/CD, cloud, and AI-assisted development tools.
.NET/C#, ASP.NET, VB.NET, React, SQL Server, NoSQL, Azure, Redis, Docker, Git, Azure DevOps, Jenkins, Cursor, Claude, Copilot
3mo
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Software Engineer, Flight Software Engineer
Huntington Beach, California, United States
$125k-$220k/yr OnsiteFull Time
Mach Industries
Mach Industries: Designs and manufactures autonomous unmanned aerial vehicles for defense.
0+ YOEStrong proficiency in C/C++ for embedded systems; real-time OS experience; flight software knowledge; MATLAB/Simulink; embedded systems background.
C, C++, Embedded Systems, Real-Time Operating Systems, MATLAB, Simulink, Rust
2mo
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Sr. C++ Software Development Engineer - ArcGIS Geocoding Algorithms
Redlands, California, United States
$123k-$202k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
5+ YOE5+ years of software development; strong C++ (C++11+), Rust; algorithms/data structures; BS in CS/Engineering/Math/IS/GIS; strong communication and time management.
C++, Rust
3d
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Software Engineer
Colorado Springs or Irvine or Longmont or Fremont or Rochester or San Jose
$111k-$148k/yr OnsiteFull Time
Western Digital
Western DigitalNASDAQ: WDC: Design and manufacture data storage devices and systems.
0+ YOEPursuing or recent Bachelor's/Master's in a technical field; experience with C/C++, Python, Java, Go, SQL, or JavaScript through coursework or internships; familiarity with software fundamentals, debugging, and development tools.
C, C++, Python, Java, Go (Golang), SQL, JavaScript, Microsoft Office, Git, Linux, IDEs
3mo
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Software Development Engineer
Edwards, California, United States
$22-$25/hr OnsiteTemporary
Science and Technology Corporation
Science and Technology Corporation: Provides scientific, engineering, and technical services to government agencies.
0+ YOEBachelor's degree in CS/Software Engineering/Aerospace; 0-2 years software development; languages include C, C++, Python, MATLAB/Simulink; US citizenship; ability to obtain security clearance.
C, C++, Python, MATLAB/Simulink
2mo
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Software Engineer, Avionics
Los Angeles, California, United States
OnsiteFull Time
Furientis
Furientis: Develops cost-effective, high-volume interceptor missile systems.
5+ YOEBS/MS in engineering or CS, 5+ years embedded software experience, strong C/C++ (Rust a plus), RTOS/Embedded Linux, motor-control and hw/sw debug experience, familiarity with CAN/SPI/I2C/UART/Ethernet, and must be a U.S. Person.
C, C++, Rust, Embedded Linux, RTOS, CAN, SPI, I2C, UART, Ethernet, DO-178, Python, FPGA
1mo
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Software Engineer
Los Angeles, California, United States
OnsiteFull Time
ALKEME Insurance
ALKEME Insurance: Insurance brokerage and risk management services provider.
Bachelor's in CS/Engineering or equivalent, proven software development experience with Java/Python/C#/JavaScript, familiarity with web frameworks and databases, strong problem-solving and communication skills.
Java, Python, C#, JavaScript, React, Angular, Node.js, SQL, NoSQL
3w
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LoopNet - Senior Software Engineer (C#/.NET)
Irvine or Orange County
$124k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Provides global real estate information, analytics, and online marketplaces.
7+ YOEBachelor's degree, 7+ years production .NET/C# experience, AWS and Apache Kafka experience, frontend knowledge (Vue/React/Angular, TypeScript), SQL/NoSQL, Git, unit/performance/integration testing experience.
C#, .NET, .NET Core, AWS, Apache Kafka, Vue, React, Angular, TypeScript, Microsoft SQL, MySQL, NoSQL, Git, GitHub Copilot, Claude Code
3w
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LoopNet - Senior Software Engineer (C#/.NET)
Irvine, California, United States
$124k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Global provider of commercial and residential real estate data.
7+ YOEBachelor's degree required; 7+ years production .NET/C# experience; AWS and Kafka experience; frontend knowledge (Vue/React/Angular, TypeScript); SQL/NoSQL and Git workflows; unit, integration, and performance testing experience.
C#, .NET, .NET Core, AWS, Apache Kafka, Vue, React, Angular, TypeScript, Git, SQL, MS SQL, MySQL, NoSQL, Claude Code, GitHub Copilot
1mo
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Payload Software Engineer
Irvine, California, United States
$155k-$175k/yr OnsiteFull Time
ICEYE
ICEYE: Operates synthetic aperture radar (SAR) satellite constellations.
6+ YOE6+ years in embedded software using C, C++, and Python; experience with SoC/microcontroller design, Embedded Linux/Yocto, ICD development, communication protocols, and full software lifecycle from requirements to test.
C, C++, Python, Embedded Linux, Yocto, FPGA, SoC, Microcontroller
2mo
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Software Engineer (Range Systems)
Corona, California, United States
$115k-$150k/yr HybridFull Time
Saalex
Saalex: Provides engineering, IT, and mission support for defense agencies.
7+ YOE7+ years in systems/software engineering; experience with hardware/software integration; proficiency in C++, Java, Python, or C#; DoD or defense program exposure is a plus.
C++, Java, Python, C#, TCP/IP
1mo
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Senior Software Engineer
Los Angeles or Vancouver
$193k-$297k/yr HybridFull Time
Electronic Arts
Electronic ArtsNASDAQ: EA: Develops and publishes video games and interactive entertainment software.
5+ YOE5+ years software development experience, strong C/C++ and Python skills, experience with large shared codebases, profiling/optimization experience, bachelor's in CS/Engineering or equivalent.
C/C++, Python